./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/large_const.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/large_const.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b03e1cb325e2c3a8ef30197a8e07012b3a728d97 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:58:23,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:58:23,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:58:23,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:58:23,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:58:23,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:58:23,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:58:23,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:58:23,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:58:23,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:58:23,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:58:23,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:58:23,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:58:23,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:58:23,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:58:23,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:58:23,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:58:23,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:58:23,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:58:23,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:58:23,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:58:23,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:58:23,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:58:23,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:58:23,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:58:23,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:58:23,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:58:23,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:58:23,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:58:23,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:58:23,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:58:23,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:58:23,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:58:23,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:58:23,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:58:23,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:58:23,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:58:23,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:58:23,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:58:23,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:58:23,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:58:23,186 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:58:23,195 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:58:23,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:58:23,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:58:23,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:58:23,196 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:58:23,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:58:23,197 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:58:23,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:58:23,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:58:23,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:58:23,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:58:23,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:58:23,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:58:23,197 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:58:23,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:58:23,197 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:58:23,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:58:23,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:58:23,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:58:23,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:58:23,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:58:23,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:58:23,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:58:23,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:58:23,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:58:23,199 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:58:23,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:58:23,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:58:23,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:58:23,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b03e1cb325e2c3a8ef30197a8e07012b3a728d97 [2019-12-07 18:58:23,298 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:58:23,308 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:58:23,311 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:58:23,313 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:58:23,313 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:58:23,314 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/large_const.i [2019-12-07 18:58:23,354 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/data/631d61bdd/8709c51d3cd041beb64bf856637b70e7/FLAG79e281c2d [2019-12-07 18:58:23,733 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:58:23,734 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/sv-benchmarks/c/loop-invgen/large_const.i [2019-12-07 18:58:23,739 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/data/631d61bdd/8709c51d3cd041beb64bf856637b70e7/FLAG79e281c2d [2019-12-07 18:58:24,135 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/data/631d61bdd/8709c51d3cd041beb64bf856637b70e7 [2019-12-07 18:58:24,139 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:58:24,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:58:24,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:58:24,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:58:24,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:58:24,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:58:24" (1/1) ... [2019-12-07 18:58:24,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a1e11ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:24, skipping insertion in model container [2019-12-07 18:58:24,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:58:24" (1/1) ... [2019-12-07 18:58:24,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:58:24,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:58:24,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:58:24,281 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:58:24,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:58:24,337 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:58:24,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:24 WrapperNode [2019-12-07 18:58:24,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:58:24,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:58:24,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:58:24,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:58:24,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:24" (1/1) ... [2019-12-07 18:58:24,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:24" (1/1) ... [2019-12-07 18:58:24,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:58:24,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:58:24,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:58:24,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:58:24,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:24" (1/1) ... [2019-12-07 18:58:24,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:24" (1/1) ... [2019-12-07 18:58:24,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:24" (1/1) ... [2019-12-07 18:58:24,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:24" (1/1) ... [2019-12-07 18:58:24,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:24" (1/1) ... [2019-12-07 18:58:24,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:24" (1/1) ... [2019-12-07 18:58:24,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:24" (1/1) ... [2019-12-07 18:58:24,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:58:24,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:58:24,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:58:24,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:58:24,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:58:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:58:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:58:24,526 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:58:24,527 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 18:58:24,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:58:24 BoogieIcfgContainer [2019-12-07 18:58:24,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:58:24,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:58:24,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:58:24,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:58:24,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:58:24" (1/3) ... [2019-12-07 18:58:24,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7763c36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:58:24, skipping insertion in model container [2019-12-07 18:58:24,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:24" (2/3) ... [2019-12-07 18:58:24,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7763c36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:58:24, skipping insertion in model container [2019-12-07 18:58:24,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:58:24" (3/3) ... [2019-12-07 18:58:24,532 INFO L109 eAbstractionObserver]: Analyzing ICFG large_const.i [2019-12-07 18:58:24,538 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:58:24,543 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:58:24,550 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:58:24,564 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:58:24,565 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:58:24,565 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:58:24,565 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:58:24,565 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:58:24,565 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:58:24,565 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:58:24,565 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:58:24,574 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-12-07 18:58:24,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 18:58:24,577 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:58:24,578 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:58:24,578 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:58:24,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:58:24,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1461315706, now seen corresponding path program 1 times [2019-12-07 18:58:24,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:58:24,587 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649462100] [2019-12-07 18:58:24,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:58:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:58:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:58:24,663 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649462100] [2019-12-07 18:58:24,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:58:24,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:58:24,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183263894] [2019-12-07 18:58:24,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:58:24,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:58:24,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:58:24,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:58:24,679 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2019-12-07 18:58:24,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:58:24,689 INFO L93 Difference]: Finished difference Result 26 states and 36 transitions. [2019-12-07 18:58:24,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:58:24,690 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-12-07 18:58:24,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:58:24,696 INFO L225 Difference]: With dead ends: 26 [2019-12-07 18:58:24,697 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 18:58:24,698 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:58:24,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 18:58:24,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 18:58:24,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 18:58:24,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2019-12-07 18:58:24,719 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 15 transitions. Word has length 7 [2019-12-07 18:58:24,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:58:24,719 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-12-07 18:58:24,719 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:58:24,719 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2019-12-07 18:58:24,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 18:58:24,720 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:58:24,720 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:58:24,720 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:58:24,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:58:24,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1479786126, now seen corresponding path program 1 times [2019-12-07 18:58:24,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:58:24,721 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646739917] [2019-12-07 18:58:24,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:58:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:58:24,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:58:24,762 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646739917] [2019-12-07 18:58:24,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:58:24,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:58:24,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56203455] [2019-12-07 18:58:24,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:58:24,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:58:24,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:58:24,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:58:24,764 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand 5 states. [2019-12-07 18:58:24,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:58:24,802 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2019-12-07 18:58:24,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:58:24,803 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-12-07 18:58:24,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:58:24,803 INFO L225 Difference]: With dead ends: 20 [2019-12-07 18:58:24,803 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 18:58:24,804 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:58:24,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 18:58:24,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-07 18:58:24,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 18:58:24,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-12-07 18:58:24,806 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2019-12-07 18:58:24,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:58:24,806 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-12-07 18:58:24,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:58:24,807 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-12-07 18:58:24,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:58:24,807 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:58:24,807 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:58:24,807 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:58:24,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:58:24,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1660828652, now seen corresponding path program 1 times [2019-12-07 18:58:24,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:58:24,808 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20315572] [2019-12-07 18:58:24,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:58:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:58:24,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:58:24,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20315572] [2019-12-07 18:58:24,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898330480] [2019-12-07 18:58:24,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:58:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:58:24,878 INFO L264 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 18:58:24,881 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:58:24,908 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:58:24,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:58:24,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:58:24,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-12-07 18:58:24,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215261298] [2019-12-07 18:58:24,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:58:24,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:58:24,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:58:24,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:58:24,920 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 8 states. [2019-12-07 18:58:25,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:58:25,018 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2019-12-07 18:58:25,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:58:25,018 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-12-07 18:58:25,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:58:25,019 INFO L225 Difference]: With dead ends: 32 [2019-12-07 18:58:25,019 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 18:58:25,020 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-12-07 18:58:25,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 18:58:25,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 19. [2019-12-07 18:58:25,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 18:58:25,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2019-12-07 18:58:25,025 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 10 [2019-12-07 18:58:25,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:58:25,026 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2019-12-07 18:58:25,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:58:25,026 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2019-12-07 18:58:25,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:58:25,026 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:58:25,026 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:58:25,227 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:58:25,227 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:58:25,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:58:25,228 INFO L82 PathProgramCache]: Analyzing trace with hash 2129936810, now seen corresponding path program 1 times [2019-12-07 18:58:25,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:58:25,229 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515715010] [2019-12-07 18:58:25,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:58:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:58:25,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:58:25,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515715010] [2019-12-07 18:58:25,301 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129245226] [2019-12-07 18:58:25,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:58:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:58:25,324 INFO L264 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 18:58:25,325 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:58:25,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:58:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:58:25,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:58:25,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-12-07 18:58:25,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115915875] [2019-12-07 18:58:25,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:58:25,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:58:25,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:58:25,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:58:25,342 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand 8 states. [2019-12-07 18:58:25,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:58:25,423 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2019-12-07 18:58:25,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:58:25,423 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-12-07 18:58:25,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:58:25,424 INFO L225 Difference]: With dead ends: 38 [2019-12-07 18:58:25,424 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 18:58:25,425 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-12-07 18:58:25,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 18:58:25,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 25. [2019-12-07 18:58:25,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 18:58:25,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-07 18:58:25,429 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 11 [2019-12-07 18:58:25,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:58:25,429 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-07 18:58:25,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:58:25,429 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-12-07 18:58:25,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:58:25,429 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:58:25,429 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:58:25,630 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:58:25,630 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:58:25,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:58:25,630 INFO L82 PathProgramCache]: Analyzing trace with hash -2107772184, now seen corresponding path program 1 times [2019-12-07 18:58:25,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:58:25,631 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723994226] [2019-12-07 18:58:25,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:58:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:58:25,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:58:25,674 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723994226] [2019-12-07 18:58:25,674 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890058885] [2019-12-07 18:58:25,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:58:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:58:25,701 INFO L264 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 18:58:25,702 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:58:25,715 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:58:25,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:58:25,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:58:25,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-12-07 18:58:25,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769743137] [2019-12-07 18:58:25,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:58:25,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:58:25,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:58:25,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:58:25,725 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 8 states. [2019-12-07 18:58:25,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:58:25,797 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2019-12-07 18:58:25,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:58:25,797 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-12-07 18:58:25,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:58:25,798 INFO L225 Difference]: With dead ends: 42 [2019-12-07 18:58:25,798 INFO L226 Difference]: Without dead ends: 40 [2019-12-07 18:58:25,798 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-12-07 18:58:25,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-12-07 18:58:25,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 30. [2019-12-07 18:58:25,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 18:58:25,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 43 transitions. [2019-12-07 18:58:25,802 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 43 transitions. Word has length 11 [2019-12-07 18:58:25,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:58:25,803 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 43 transitions. [2019-12-07 18:58:25,803 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:58:25,803 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2019-12-07 18:58:25,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 18:58:25,803 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:58:25,803 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:58:26,004 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:58:26,005 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:58:26,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:58:26,005 INFO L82 PathProgramCache]: Analyzing trace with hash -272038047, now seen corresponding path program 1 times [2019-12-07 18:58:26,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:58:26,006 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911128514] [2019-12-07 18:58:26,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:58:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:58:26,073 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:58:26,073 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911128514] [2019-12-07 18:58:26,073 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364477805] [2019-12-07 18:58:26,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:58:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:58:26,095 INFO L264 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:58:26,096 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:58:26,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:58:26,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 18:58:26,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2019-12-07 18:58:26,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653699123] [2019-12-07 18:58:26,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:58:26,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:58:26,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:58:26,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-12-07 18:58:26,129 INFO L87 Difference]: Start difference. First operand 30 states and 43 transitions. Second operand 5 states. [2019-12-07 18:58:26,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:58:26,150 INFO L93 Difference]: Finished difference Result 36 states and 49 transitions. [2019-12-07 18:58:26,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:58:26,151 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-12-07 18:58:26,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:58:26,152 INFO L225 Difference]: With dead ends: 36 [2019-12-07 18:58:26,152 INFO L226 Difference]: Without dead ends: 26 [2019-12-07 18:58:26,152 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-12-07 18:58:26,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-12-07 18:58:26,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-12-07 18:58:26,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 18:58:26,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2019-12-07 18:58:26,156 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 35 transitions. Word has length 13 [2019-12-07 18:58:26,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:58:26,157 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 35 transitions. [2019-12-07 18:58:26,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:58:26,157 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2019-12-07 18:58:26,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 18:58:26,158 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:58:26,158 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:58:26,358 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:58:26,359 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:58:26,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:58:26,360 INFO L82 PathProgramCache]: Analyzing trace with hash 55602980, now seen corresponding path program 1 times [2019-12-07 18:58:26,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:58:26,360 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908176438] [2019-12-07 18:58:26,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:58:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:58:26,458 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:58:26,458 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908176438] [2019-12-07 18:58:26,458 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781147663] [2019-12-07 18:58:26,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:58:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:58:26,480 INFO L264 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:58:26,480 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:58:26,512 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:58:26,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 18:58:26,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2019-12-07 18:58:26,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642009081] [2019-12-07 18:58:26,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:58:26,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:58:26,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:58:26,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-12-07 18:58:26,513 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. Second operand 5 states. [2019-12-07 18:58:26,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:58:26,519 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2019-12-07 18:58:26,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:58:26,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-07 18:58:26,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:58:26,520 INFO L225 Difference]: With dead ends: 29 [2019-12-07 18:58:26,520 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:58:26,521 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-12-07 18:58:26,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:58:26,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:58:26,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:58:26,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:58:26,522 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-12-07 18:58:26,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:58:26,522 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:58:26,522 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:58:26,522 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:58:26,522 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:58:26,723 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:58:26,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:58:26,941 INFO L246 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2019-12-07 18:58:26,941 INFO L242 CegarLoopResult]: At program point L32-2(lines 32 36) the Hoare annotation is: (let ((.cse0 (<= 2000 ULTIMATE.start_main_~c2~0)) (.cse2 (<= 10000 ULTIMATE.start_main_~c3~0)) (.cse1 (< ULTIMATE.start_main_~n~0 2)) (.cse3 (<= 4000 ULTIMATE.start_main_~c1~0))) (or (and (<= 1 ULTIMATE.start_main_~j~0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse1 (<= 2000 ULTIMATE.start_main_~k~0) (<= 0 ULTIMATE.start_main_~j~0) .cse3) (and (<= ULTIMATE.start_main_~i~0 0) (<= ULTIMATE.start_main_~n~0 0) (<= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~j~0)))) [2019-12-07 18:58:26,941 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:58:26,942 INFO L246 CegarLoopResult]: For program point L32-3(lines 32 36) no Hoare annotation was computed. [2019-12-07 18:58:26,942 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:58:26,942 INFO L246 CegarLoopResult]: For program point L24(lines 24 29) no Hoare annotation was computed. [2019-12-07 18:58:26,942 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-12-07 18:58:26,942 INFO L246 CegarLoopResult]: For program point L20-2(lines 20 30) no Hoare annotation was computed. [2019-12-07 18:58:26,942 INFO L249 CegarLoopResult]: At program point L37(lines 10 38) the Hoare annotation is: true [2019-12-07 18:58:26,942 INFO L246 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-12-07 18:58:26,942 INFO L242 CegarLoopResult]: At program point L4-2(lines 3 8) the Hoare annotation is: (and (<= 2000 ULTIMATE.start_main_~c2~0) (< ULTIMATE.start_main_~n~0 2) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 10000 ULTIMATE.start_main_~c3~0) (<= 0 ULTIMATE.start_main_~j~0) (<= 4000 ULTIMATE.start_main_~c1~0)) [2019-12-07 18:58:26,942 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:58:26,942 INFO L246 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2019-12-07 18:58:26,943 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-12-07 18:58:26,943 INFO L246 CegarLoopResult]: For program point L26(lines 26 29) no Hoare annotation was computed. [2019-12-07 18:58:26,943 INFO L242 CegarLoopResult]: At program point L26-2(lines 20 30) the Hoare annotation is: (let ((.cse0 (<= 2000 ULTIMATE.start_main_~c2~0)) (.cse1 (<= 10000 ULTIMATE.start_main_~c3~0)) (.cse2 (<= 4000 ULTIMATE.start_main_~c1~0))) (or (and (<= 1 ULTIMATE.start_main_~i~0) .cse0 .cse1 (< ULTIMATE.start_main_~n~0 2) (<= 2000 ULTIMATE.start_main_~k~0) .cse2) (and (<= ULTIMATE.start_main_~i~0 0) (<= 0 ULTIMATE.start_main_~k~0) .cse0 .cse1 .cse2 (<= 0 ULTIMATE.start_main_~i~0)))) [2019-12-07 18:58:26,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:58:26 BoogieIcfgContainer [2019-12-07 18:58:26,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:58:26,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:58:26,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:58:26,956 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:58:26,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:58:24" (3/4) ... [2019-12-07 18:58:26,959 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:58:26,966 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 18:58:26,967 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 18:58:26,967 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 18:58:26,999 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f34ed817-2742-42b6-a3ac-3fa532f4de99/bin/uautomizer/witness.graphml [2019-12-07 18:58:26,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:58:27,001 INFO L168 Benchmark]: Toolchain (without parser) took 2860.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 939.3 MB in the beginning and 846.8 MB in the end (delta: 92.5 MB). Peak memory consumption was 199.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:58:27,001 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:58:27,001 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -163.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:58:27,002 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:58:27,002 INFO L168 Benchmark]: Boogie Preprocessor took 13.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:58:27,002 INFO L168 Benchmark]: RCFGBuilder took 152.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:58:27,003 INFO L168 Benchmark]: TraceAbstraction took 2427.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 850.0 MB in the end (delta: 234.0 MB). Peak memory consumption was 234.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:58:27,003 INFO L168 Benchmark]: Witness Printer took 43.15 ms. Allocated memory is still 1.1 GB. Free memory was 850.0 MB in the beginning and 846.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:58:27,005 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 196.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -163.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 152.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2427.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 850.0 MB in the end (delta: 234.0 MB). Peak memory consumption was 234.0 MB. Max. memory is 11.5 GB. * Witness Printer took 43.15 ms. Allocated memory is still 1.1 GB. Free memory was 850.0 MB in the beginning and 846.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((((2000 <= c2 && n < 2) && !(0 == cond)) && 10000 <= c3) && 0 <= j) && 4000 <= c1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((((1 <= i && 2000 <= c2) && 10000 <= c3) && n < 2) && 2000 <= k) && 4000 <= c1) || (((((i <= 0 && 0 <= k) && 2000 <= c2) && 10000 <= c3) && 4000 <= c1) && 0 <= i) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((1 <= j && 2000 <= c2) && n < 2) && 10000 <= c3) && 4000 <= c1) || (((((2000 <= c2 && 10000 <= c3) && n < 2) && 2000 <= k) && 0 <= j) && 4000 <= c1)) || ((i <= 0 && n <= 0) && n <= j) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 107 SDtfs, 118 SDslu, 188 SDs, 0 SdLazy, 233 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 32 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 13 NumberOfFragments, 106 HoareAnnotationTreeSize, 4 FomulaSimplifications, 549 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 276 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 4831 SizeOfPredicates, 15 NumberOfNonLiveVariables, 285 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 9/22 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...